Security Advisory

CVE-2026-41577

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-02 17:12:26

Last updated 2026-06-03 13:18:23

Assigner GitHub_M

CVSS score not scored

State PUBLISHED

Description

authentik is an open-source identity provider. Prior to versions 2025.12.5 and 2026.2.3, the SAML source response processor (ResponseProcessor.parse()) does not validate the Conditions element on assertions. NotBefore, NotOnOrAfter, and AudienceRestriction are all ignored. This allows replay of expired assertions and acceptance of assertions intended for other service providers. This issue has been patched in versions 2025.12.5 and 2026.2.3.

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